Is this a 64bit version compatible?
The latest version of the software is compatible with 64bit versions of Windows OS. I've installed the application on Windows 10 x64 and it works just fine, only that you have to download the latest release from the official website.
Before reaching to the actual download, a form needs to be filled with your details. You can do that on the following page: http://www2.leicabiosystems.com/l/48532/2014-11-18/35cqc